Casing centralizer



This application is related to (1) U.S. Design application Ser. No.29/405,113, filed Oct. 28, 2011; (2) U.S. Design application Ser. No.29/405,117, filed Oct. 28, 2011; (3) U.S. Design application Ser. No.29/405,121, filed Oct. 28, 2011; (4) U.S. Design application Ser. No.29/405,124, filed Oct. 28, 2011; (5) U.S. Design application Ser. No.29/405,130, filed Oct. 28, 2011; (6) U.S. Design application Ser. No.29/405,133, filed Oct. 28, 2011, the entire disclosures of which areincorporated herein by reference.

FIG. 1 is a perspective view of a casing centralizer showing our newdesign according to a first embodiment;

FIG. 2 is an elevational view of the first embodiment;

FIG. 3 is a top plan view of the first embodiment, the bottom plan viewof the first embodiment being identical to the top plan view of thefirst embodiment;

FIG. 4 is a sectional view of the first embodiment taken along line 4-4of FIG. 3;

FIG. 5 is an elevational view of the casing centralizer according to asecond embodiment, the second embodiment being identical to the firstembodiment except that the second embodiment has one indeterminatelength as indicated in FIG. 5;

FIG. 6 is a top plan view of the casing centralizer according to a thirdembodiment, the third embodiment being identical to the first embodimentexcept that the third embodiment has six indeterminate lengths asindicated in FIG. 6;

FIG. 7 is a perspective view of a casing centralizer showing our newdesign according to a fourth embodiment;

FIG. 8 is an elevational view of the fourth embodiment;

FIG. 9 is a top plan view of the fourth embodiment, the bottom plan viewof the fourth embodiment being identical to the top plan view of thefourth embodiment;

FIG. 10 is a sectional view of the fourth embodiment taken along line10-10 of FIG. 9;

FIG. 11 is an elevational view of the casing centralizer according to afifth embodiment, the fifth embodiment being identical to the fourthembodiment except that the fifth embodiment has one indeterminate lengthas indicated in FIG. 11; and,

FIG. 12 is a perspective view of the casing centralizer showing our newdesign according to a sixth embodiment, the sixth embodiment beingidentical to the fourth embodiment except that the sixth embodiment hassix indeterminate lengths as indicated in FIG. 12.

The ornamental design for a casing centralizer, as shown and described.